The Research of Fracture and Pore Dual-media Reservoir Gas Well Production Capacity Formula

doi:10.11885/j.issn.1674-5086.2023.12.18.03

Abstract

Abstract: Reasonable evaluation of production capacity is very important for gas well production. It is the foundation for the long-term development of gas field. The ultra-deep and ultra-high-pressure fractured tight sandstone gas reservoirs in front of Kuche mountain of Tarim Oilfield is characteristic of tight matrix and developed fractures. The seepage characteristics often manifest as the dual-media reservoir features of fractures and matrix. The entire flow process is divided into three stages: fracture flow, transitional flow and overall system flow. In response to the lack of targeted production capacity evaluation methods, the research has been conducted on the early production capacity evaluation formula corresponding to the fracture flow stage, transitional stage and on the long-term stable production capacity corresponding to the fracture porosity flow stage. The production capacity evaluation formula for dual-media reservoir gas wells considering the skin factor and the high speed non-Darcy coefficient has been theoretically established. The examples of calculation show that the result of production capacity formula is closer to the testing production than the conventional point method empirical formula, demonstrating good applicability in ultra-deep and ultra-high-pressure fractured tight sandstone gas reservoirs.

Key words: fracture, pore, dual-media, gas well, production capacity formula

CLC Number:

TE377

PENG Peng, WANG Xiaopei, ZHANG Yongling, ZHAO Boyong, LIU Zhaolong. The Research of Fracture and Pore Dual-media Reservoir Gas Well Production Capacity Formula[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(6): 83-93.

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References

[1] 庄惠农，韩永新，孙贺东，等. 气藏动态描述和试井[M]. 3版. 北京:石油工业出版社， 2021: 218227. ZHUANG Huinong, HAN Yongxin, SUN Hedong, et al. Gas field dynamic description and test well[M]. 3rd Ed. Beijing: Petroleum Industry Press, 2021: 218-227.
[2] 蔡珺君，彭先，李隆新，等. 超深层碳酸盐岩气田产能评价的扩展“一点法” [J]. 断块油气田， 2022， 29（4）: 446454. doi: 10.6056/dkyqt202204003 CAI Junjun, PENG Xian, LI Longxin, et al. Extended“one point method ” for productivity evaluation of ultra-deep carbonate gas fields[J]. Fault-Block Oil and Gas Field, 2022, 29(4): 446-454. doi: 10.6056/dkyqt202204003
[3] 李芳，于超，丁海帆，等. 考虑多因素致密双重介质气藏产能计算新模型[J]. 天然气与石油， 2017， 35（1）: 78-83. doi: 10.3969/j.issn.1006-5539.2017.01.015 LI Fang, YU Chao, DING Haifan, et al. A new model for calculating well productivity of compact double medium reservoir considering multiple factors[J]. Natural Gas and Oil, 2017, 35(1): 78-83. doi: 10.3969/j.issn.1006-5539.2017.01.015
[4] 罗建新，赵茂林，张烈辉，等. 基于产量损失率的气井合理配产方法研究[J]. 西南石油大学学报（自然科学版）， 2024， 46（1）: 89-96. doi: 10.11885/j.issn.1674-5086.2022.09.19.02 LUO Jianxin, ZHAO Maolin, ZHANG Liehui, et al. Research on production allocation method of gas well based on production loss rate[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2024, 46(1): 89-96. doi: 10.11885/j.issn.1674-5086.2022.09.19.02
[5] 袁权，欧家强，颜平，等. 基于双孔隙径向复合地层渗流理论的气井产能模型[J]. 四川理工学院学报（自然科学版）， 2019， 32（6）: 53-59. doi: 10.11863/j.suse.2019.06.09 YUAN Quan, OU Jiaqiang, YAN Ping, et al. Gas well productivity prediction model based on dual porosity radial composite formation model[J]. Journal of University of Science & Engineering (Natural Science Edition), 2019, 32(6): 53-59. doi: 10.11863/j.suse.2019.06.09
[6] 魏聪，张承泽，陈东，等. 塔里木盆地克深2 气藏断层、裂缝、基质“三重介质”渗流及开发机理[J]. 天然气地球科学， 2019， 30（12）: 1684-1693. doi: 10.11764/j.issn.1672-1926.2019.07.011 WEI Cong, ZHANG Chengze, CHEN Dong, et al. Seepage characteristics and development mechanism characterized by faults-fracture-pores“triple medium”in Keshen 2 Gas Reservoirs, Tarim Basin[J]. Natural Gas Geoscience, 2019, 30(12): 1684-1693. doi: 10.11764/j.issn.1672-1926. 2019.07.011
[7] 樊怀才，李晓平，窦天财，等. 双重变形介质储层气井流量动态特征研究[J]. 西南石油大学学报（自然科学版）， 2011， 33（2）: 115-120. doi: 10.3863/j.issn.1674-5086.2011.02.019 FAN Huaicai, LI Xiaoping, DOU Tiancai, et al. Study on the flowing performance of gas wells in dual-porosity deformable fractal reservoirs[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2011, 33(2): 115-120. doi: 10.3863/j.issn.1674-5086.2011.02.019
[8] 李传亮. 两种双重介质的对比与分析[J]. 岩性油气藏， 2008， 20（4）: 128-131. doi: 10.3969/j.issn.1673-8926.2008.04.024 LI Chuanliang. Two types of dual porosity media[J]. Lithologic Reservoirs, 2008, 20(4): 128-131. doi: 10.3969/j.is sn.1673-8926.2008.04.024
[9] 杨超，李相方，李彦兰，等. 多层双孔介质储层水平井压力求解方法[J]. 中国矿业大学学报， 2013， 42（3）: 436-443. YANG Chao, LI Xiangfang, LI Yanlan, et al. The computation method for horizontal well pressure in multi layered dual porosity reservoir[J]. Journal of China University of Mining & Technology, 2013, 42(3): 436-443.
[10] 吴英，马焕英，张子前，等. 基于压力的气井二项式产能方程曲线校正新方法[J]. 油气井测试， 2022， 31（6）: 1-5. doi: 10.19680/j.cnki.1004-4388.2022.06.001 WU Ying, MA Huanying, ZHANG Ziqian, et al. A new correction method of gas well binomial productivity equation curve based on pressure[J]. Well Testing, 2022, 31(6): 1-5. doi: 10.19680/j.cnki.1004-4388.2022.06.001
[11] 何自新，郝玉鸿. 渗透率对气井产能方程及无阻流量的影响分析[J]. 石油勘探与开发， 2001， 28（5）: 46-48. doi: 10.3321/j.issn:1000-0747.2001.05.013 HE Zixin, HAO Yuhong. Analysis of effects of permeability on gas well productivity equation and open flow capacity[J]. Petroleum Exploration and Development, 2001, 28(5): 46-48. doi: 10.3321/j.issn:1000-0747.2001.05.013
[12] 蔡珺君，刘晓东，刘微，等. 气井产能评价的内涵、内容厘定及意义[J]. 断块油气田， 2025， 32（4）: 634-641， 668. doi: 10.6056/dkyqt202504013 CAI Junjun, LIU Xiaodong, LIU Wei, et al. Connotation, content determination and significance of gas-well productivity evaluation[J]. Fault-Block Oil and Gas Field, 2025, 32(4): 634-641, 668. doi: 10.6056/dkyqt202504013
[13] 刘荣和，张文彪，冷有恒. 裂缝孔隙型碳酸盐岩气藏稳态产能评价方法[J]. 特种油气藏， 2022， 29（2）: 122-127. doi: 10.3969/j.issn.1006-6535.2022.02.018 LIU Ronghe, ZHANG Wenbiao, LENG Youheng. Steady productivity evaluation method of fractured-porous carbonate gas reservoirs[J]. Special Oil and Gas Reservoirs, 2022, 29(2): 122-127. doi: 10.3969/j.issn.1006-6535.2022.02.018
[14] 唐洪俊，王大兴，石永新. 用不稳定试井资料确定气井产能的新方法[J]. 钻采工艺， 2005， 28（4）: 64-65， 73. doi: 10.3969/j.issn.1006-768X.2005.04.022 TANG Hongjun, WANG Daxing, SHI Yongxin. New method for determining the flow potential of gas well by destabilization well-testing data[J]. Drilling & Production Technology, 2005, 28(4): 64-65, 73. doi: 10.3969/j.issn.1006-768X.2005.04.022
[15] 郭肖，赵显阳，杨泓波. 异常高压低渗透气藏产能评价新方法[J]. 油气藏评价与开发， 2018， 8（6）: 13-18. doi: 10.3969/j.issn.2095-1426.2018.06.003 GUO Xiao, ZHAO Xianyang, YANG Hongbo. A new method for evaluating the productivity of abnormally highpressure and low permeability gas reservoirs[J]. Reservoir Evaluation and Development, 2018, 8(6): 13-18. doi: 10.3969/j.issn.2095-1426.2018.06.003
[16] 刘启国，江晓敏，程晓旭，等. 异常高压气井流入动态特征及产能试井分析方法研究[J]. 油气井测试， 2008， 17（4）: 5-7. doi: 10.3969/j.issn.1004-4388.2008.04.002 LIU Qiguo, JIANG Xiaomin, CHENG Xiaoxu, et al. Study on test analysis method of abnormally pressured gas well about inflow performance characteristic and productivity[J]. Well Testing, 2008, 17(4): 5-7. doi: 10.3969/j.issn. 1004-4388.2008.04.002
[17] 李士伦，王鸣华，何江川，等. 气田与凝析气田开发[M]. 北京:石油工业出版社， 2004: 243-245. LI Shilun, WANG Minghua, HE Jiangchuan, et al. Gas field and condensate gas field development[M]. Beijing: Petroleum Industry Press, 2004: 243-245.
[18] 李奇，高树生，刘华勋，等. 岩心渗透率的计算方法与适用范围[J]. 天然气工业， 2015， 35（3）: 68-73. doi: 10.3787/j.issn.1000-0976.2015.03.010 LI Qi, GAO Shusheng, LIU Huaxun, et al. Core permeability calculation methods and application scopes[J]. Natural Gas Industry, 2015, 35(3): 68-73. doi: 10.3787/j.i ssn.1000-0976.2015.03.010
[19] 李奇，高树生，刘华勋，等. 岩心渗透率的精确计算方法及其适用范围实验研究[J]. 西安石油大学学报（自然科学版）， 2015， 30（2）: 69-74. doi: 10.3969/j.issn.1673-064X.2015.02.013 LI Qi, GAO Shusheng, LIU Huaxun, et al. Experimental study on accurate calculation method of core permeability and its applicable scope[J]. Journal of Xi'an Shiyou University (Natural Science Edition), 2015, 30(2): 69-74. doi: 10.3969/j.issn.1673-064X.2015.02.013
[20] 尚克俭，冯东梅，叶礼友，等. 裂缝孔隙型双重介质气藏开发影响分析[J]. 西南石油大学报（自然科学版）， 2018， 40（2）: 107-114. doi: 10.11885/j.issn.1674-5086.2017.01.08.02 SHANG Kejian, FENG Dongmei, YE Liyou, et al. Analysis of the influence of the development of fractureporosity-type volcanic gas reservoir[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2018, 40(2): 107-114. doi: 10.11885/j.issn.1674-5086.2017.01.08.02
[21] 李国峰，李海涛，王文清，等. 影响气井产能的主要因素分析[J]. 重庆科技学院学报（自然科学版）， 2008， 10（1）: 18-21. doi: 10.3969/j.issn.1673-1980.2008.01.006 LI Guofeng, LI Haitao, WANG Wenqing, et al. Factor analysis on influence of gas well productivity[J]. Journal of Chongqing University of Science and Technology (Natural Sciences Edition), 2008, 10(1): 18-21. doi:10.3969/j.issn.1673-1980.2008.01.006
[22] 朱绍鹏，李文红，劳业春. 凝析气井无阻流量影响因素分析[J]. 特种油气藏， 2007， 14（1）: 8486. doi: 10.3969/j.issn.1006-6535.2007.01.024 ZHU Shaopeng, LI Wenhong, LAO Yechun. Influence factors of open flow potential in condensate gas well[J]. Special Oil & Gas Reservoirs, 2007, 14(1): 84-86. doi: 10.3969/j.issn.1006-6535.2007.01.024
[23] 李恒，黄炳香，孙政，等. 高效预测气藏产能的线化双重介质模型[J]. 中国科学:物理学力学天文学， 2022， 52（12）: 124-712. doi: 10.1360/SSPMA-2022-0134 LI Heng, HUANG Bingxiang, SUN Zheng, et al. Efficient linear dual-medium model for production prediction[J]. Scientia Sinica Physica (Mechanica & Astronomica), 2022, 52(12): 124-712. doi: 10.1360/SSPMA2022-0134